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Multiple Choice
Which of the following is a functional group commonly found in organic molecules?
A
Hydroxyl group (-OH)
B
Sodium ion (Na+)
C
Helium atom (He)
D
Chloride ion (Cl-)
Verified step by step guidance
1
Identify the definition of a functional group in organic chemistry: A functional group is a specific group of atoms within a molecule that is responsible for a characteristic chemical reaction of that molecule.
Review the options provided: Hydroxyl group (-OH), Sodium ion (Na+), Helium atom (He), Chloride ion (Cl-).
Determine which of these options is a functional group: A functional group is typically a group of atoms bonded together, not a single atom or ion.
Recognize that the hydroxyl group (-OH) is a common functional group in organic chemistry, often found in alcohols and phenols.
Conclude that the hydroxyl group (-OH) is the correct answer as it fits the definition of a functional group commonly found in organic molecules.